package com.catchegg.springcloud.service.impl;

import cn.hutool.core.util.IdUtil;
import com.catchegg.springcloud.service.PaymentService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentServiceImpl implements PaymentService {
    @Override
    public String getPaymentInfo_OK(Integer id) {
        return Thread.currentThread().getName() + "----OK----" + id;
    }


    @HystrixCommand(fallbackMethod = "getPaymentInfo_ErrorHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "2000")
    })
    @Override
    public String getPaymentInfo_Error(Integer id) {
        System.out.println(Thread.currentThread().getName() + "-----------error----------" + id);
        Integer timeout = id;
        //int a = 10 / 0;
        try {
            TimeUnit.SECONDS.sleep(timeout);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return Thread.currentThread().getName() + "-----getPaymentInfo_Error----ERROR----" + id;
    }


    public String getPaymentInfo_ErrorHandler(Integer id) {
        return Thread.currentThread().getName() + "服务端fallback-----------getPaymentInfo_ErrorHandler----ERROR----" + id;
    }

    //---服务的熔断
    @HystrixCommand(
            fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"), //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"), //请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), //时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60"),//失败率达到多少后跳闸

    }
    )
    @Override
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if (id < 0) {
            throw new RuntimeException("******id不能为负数");
        }
        String simpleUUID = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "成功调用，流水号是：" + simpleUUID;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {
        return "id不能为负数，请稍后再试............" + id;
    }


}
